USDA's Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) provides nutritious foods, nutrition counseling, and referrals to health and other social services to low-income women and their infants/children up to age 5. Despite the health benefits of WIC participation, many eligible women do not participate during pregnancy, and many households exit WIC when a participating child turns 1 year old. The authors of this report use the first two waves of the Early Childhood Longitudinal Study-Birth Cohort (ECLS-B) to understand these transitions into and out of WIC. Findings show that households that are more economically advantaged are more likely to delay entry into the program or exit after a child turns 1 year old. Some of the mothers exiting the program reported that WIC requires too much effort and that its benefits are not worth the time (26.2 percent of those exiting) or that they have scheduling and transportation problems (almost 10 percent of those exiting), suggesting that the costs of participation may be a barrier to continued WIC participation.

USDA's Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) provides nutritious foods, nutrition counseling, and referrals to health and other social services to low-income women and their infants/children up to age 5. Despite the health benefits of WIC participation, many eligible women do not participate during pregnancy, and many households exit WIC when a participating child turns 1 year old. The authors of this report use the first two waves of the Early Childhood Longitudinal Study-Birth Cohort (ECLS-B) to understand these transitions into and out of WIC. Findings show that households that are more economically advantaged are more likely to delay entry into the program or exit after a child turns 1 year old. Some of the mothers exiting the program reported that WIC requires too much effort and that its benefits are not worth the time (26.2 percent of those exiting) or that they have scheduling and transportation problems (almost 10 percent of those exiting), suggesting that the costs of participation may be a barrier to continued WIC participation.

The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) began 40 years ago as a pilot program and has since grown to serve over 8 million pregnant women, and mothers of and their infants and young children. Today the program serves more than a quarter of the pregnant women and half of the infants in the United States, at an annual cost of about $6.2 billion. Through its contribution to the nutritional needs of pregnant, breastfeeding, and post-partum women; infants; and children under 5 years of age; this federally supported nutrition assistance program is integral to meeting national nutrition policy goals for a significant portion of the U.S. population. To assure the continued success of the WIC, Congress mandated that the Food and Nutrition Service of the U.S. Department of Agriculture (USDA) reevaluate the program's food packages every 10 years. In 2014, the USDA asked the Institute of Medicine to undertake this reevaluation to ensure continued alignment with the goals of the Dietary Guidelines for Americans. This, the second report of this series, provides a summary of the work of phase I of the study, and serves as the analytical underpinning for phase II in which the committee will report its final conclusions and recommendations.

The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) began 40 years ago as a pilot program and has since grown to serve over 8 million pregnant women, and mothers of and their infants and young children. Today the program serves more than a quarter of the pregnant women and half of the infants in the United States, at an annual cost of about $6.2 billion. Through its contribution to the nutritional needs of pregnant, breastfeeding, and post-partum women; infants; and children under 5 years of age; this federally supported nutrition assistance program is integral to meeting national nutrition policy goals for a significant portion of the U.S. population. To assure the continued success of the WIC, Congress mandated that the Food and Nutrition Service of the U.S. Department of Agriculture (USDA) reevaluate the program's food packages every 10 years. In 2014, the USDA asked the Institute of Medicine to undertake this reevaluation to ensure continued alignment with the goals of the Dietary Guidelines for Americans. In this third report, the committee provides its final analyses, recommendations, and the supporting rationale.

The mission of the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) is to safeguard the health of low-income women, infants, and children through age 4 who are at nutritional risk. WIC provides nutritious foods to supplement diets, nutrition education, and referrals to health care and other social services. Almost half of all infants and about a quarter of all children ages 1-4 in the U.S. participate in the program. WIC accounts for 10% of total Federal spending on food and nutrition assistance. This report describes the WIC program ¿ how it works, its history, program trends, and the characteristics of the population it serves. It also examines current issues facing WIC, focusing mainly on those with important economic implications.